《Food Safety and Home Food Preservation》课程教学课件（PPT讲稿）Carbohydrates：Starch and Sugars

Experimental Foods Carbohydrates: Starch and Sugars Alternative Sweeteners

Experimental Foods Carbohydrates: Starch and Sugars Alternative Sweeteners

Starch 1. Wheat 2. Corn 3. Potato 4. Rice 5. Cassava (Tapioca)

Starch 1. Wheat 2. Corn 3. Potato 4. Rice 5. Cassava (Tapioca)

amyloplast with slarch grains chloroplast nucleus endoplasmic reticulum (ER chlorop asts with grana embedded in stroma piasmodesma. vacuolar membrane cell walls with middle lamella between Golgi apparalus Figure P-2 A generalized plant cell.The drawing is based on the appearances of cellular plasma membrane organelles in electron micrographs.(W.A. Jensen and F B.Salisbury,1984,Botany.p.46.)

Rhamnogalacturonan Cellulose Fibril Arabinogalactan Xyloglucan Secondary Wall Primary Wall Middle Lamella Intercellular Space Fom额 FIG.17.1.A MODEL OF CELL WALL ARCHITECTURE

Starch Wheat Kernel

Starch Wheat Kernel

(a) b】 (e)

(a) (b) FICURE 7.Segment of starch granule before and after swelling.(a)Unswollen segment;(b)swollen segment.(After Meyer and Bernfeld,1940.)

Starch Molecular Structure Polysaccharides Amylose Amylopectin

Starch Molecular Structure Polysaccharides Amylose Amylopectin

AmylopectiN Amylosc BRawched A十 Linkase l,gli心kAges Link的色 1y glycosidic ligkaye 1,4 lycosidic liwkas

Starch Molecular Structure Polysaccharides Amylose Amylopectin Linkage 1,4 glycosidic 1,6 glycosidic

Starch Molecular Structure Polysaccharides Amylose Amylopectin Linkage 1,4 glycosidic 1,6 glycosidic